Research Article

Dexamethasone Enhanced Functional Recovery after Sciatic Nerve Crush Injury in Rats

Figure 6

Effects of dexamethasone on the myelinated axon counts on day 28 after surgery. ((n), (a)–(e)) Histological micrographs of nerve tissue stained with osmium tetroxide staining (magnification 400x). (n) shows the sciatic nerve on nonoperated side; (a) sham group; (b) control group; ((c)–(e)) 0.5, 1, and 2 mg/kg dexamethasone-treated groups, respectively. (f) Total myelinated axon counts. Rats were administered local intramuscular injections with 0.5, 1, or 2 mg/kg dexamethasone, or saline once a day after surgery. The values represent means ± SD for 6 rats per group. +Significant difference compared to sham, . Significant difference compared to control, .